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Water Filter Cartridges, Replacement Filters

Water Filter Replacement Cartridges for home, whole house, commercial and industrial applications. We carry a number of "filter inserts" that are known in the industry as "cartridges". Filter Cartridges below are separated by size and application. Products are listed in the following order: 10"x2.5" filters, shower replacement cartridges, 20"x2.5" filters, 10"x5" (10x4.5) filters, 20"x5" (20x4.5) filters, inline and other sizes. Please browse our catalog or use Search function if you know model number.
 
How to identify which replacement cartridge you need?
Look for Brand and Model number written on your system. Also, look for any filter models that can be written on each individual housing for systems that use more than one filter. You may be able to identify cartridges by system model. If you are unable to get any product numbers, remove each cartridge (or at least one) from its housing. For round cylinder filters, measure width and diameter, it should give an indication whether your filter is of standard size. For instance, a 10"x2.5" standard filter may measure 9 7/8" x 2 1/4" (and up to 3" in diameter). Standard sizes are 10x2.5, 20x2.5, 10x5 (10x4.5) and 20x5 (20x4.5) inches (first number is length, second diameter). 
Narrow your search further:
  • Sediment Water Filters and Replacement Cartridges
  • Activated Carbon Water Filters and Carbon Block Fi
  • RO Reverse Osmosis Membranes

Pentek GAC-20BB 20x5 Carbon Filter 155249-43 Pentek 155249 20 inch GAC-BB Cartridge
SKU: PTK-GAC-20BB
Pentek GAC-20BB 20"x5" Granular Activated Carbon Chlorine Taste and Odor cartridge # 155249. Excellent 20 inch Taste and Odor reduction cartridge that can also remove Sulfur / Hydrogen sulfide / Rotten egg smell. Genuine Pentek water filter compatible with Culligan,...

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Price: $50.75

Pentek RFFE20-BB Iron Reduction Filter 155263-03 Pentek RFFE20-BB Iron Reduction Filter
SKU: PTK-RFFE20-BB
Pentek RFFE20-BB Iron Reduction Filter is a 20"x5" cartridge that can reduce up to 3 ppm iron in drinking water. Genuine Pentek water filter cartridge, product # 155263-03. Pentek/Ametek RFFE20-BB 20 is a Radial Flow Big Blue Water Filter Cartridge for Iron...

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Price: $98.00

Pentek ChlorPlus 20BB Chloramine Filter 355753-43 Pentek ChlorPlus 20BB Chloramine Filter
SKU: PTK-355753
Pentek ChlorPlus 20BB Chloramine removal Water Filter Cartridge is a 20"x4.5" Carbon Block 1 micron Water Filter cartridge # 355753-43 designed to remove chloramines from drinking water in high flow and whole house applications. ChlorPlus Water Filter is a premium, high...

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Price: $123.99
On Sale For: $108.00
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Pentek RFC20-BB 20x5 Carbon Filter 155247-43 Pentek RFC20-BB Cartridge 155247
SKU: PTK-RFC20-BB
Culligan / Pentek RFC20-BB 20"x5" Radial Flow Carbon Filter Cartridge # 155247. Genuine Pentek water filter compatible with Culligan, Ametek, US Filter, Plymouth, Kleen Plus, American Plumber, Bruner and many other brands.
Pentek RFC20-BB Carbon Water Filter...

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Price: $64.50

Washing Machine Inline Replacement Filter, 2-pack Washing Machine Inline Replacement Filter, 2-pack
SKU: IWF-02
Washing Machine Inline Replacement Filter Cartirdge, set of 2. Works for IWF-01 and 85470 Washing Machine Filters. Inside of the filter is made out of strong metal mesh for extended life, filter is also excellent for trapping sediment. When you...

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Price: $19.99

Crystal Quest UV System replacement lamp Crystal Quest UV System Replacement Lamp
SKU: CQ-UV-03101
The Crystal Quest UV replacement lamp for Crystal Quest UltraViolet Sterilizer systems. Uses natural ultraviolet light energy to eradicate microbiological contamination. Water enters through the bottom part of the reactor chamber...

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Starting at: $59.00

Inline GAC Cartridge for Water Coolers and RO Inline GAC Cartridge
SKU: CQE-RC-04038
CRYSTAL QUEST Water Cooler/Reverse Osmosis Granulated Activated Coconut Shell Carbon (GAC) Filter Cartridge is a replacement filter cartridge for Bottleless Water Coolers and Reverse Osmosis systems. It is one of the stages applied for...
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Price: $49.00

Inline Sediment Filter Cartridge Inline Sediment Cartridge
SKU: CQE-RC-04037
CRYSTAL QUEST Water Cooler Sediment Filter Cartridge is a replacement filter cartridge for Bottle-less Water Coolers. It is one of the stages applied for multiple filtration processes. This Inline...

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Price: $49.00

Multistage Cartridge for RO and Bottleless Coolers Inline Multistage Cartridge SMART
SKU: CQE-RC-04040
SMART Inline Multistage Cartridge by CRYSTAL QUEST, a replacement filter cartridge with 6 stages of filtration. It is designed to be used with Crystal Quests' line of Hybrid, Sharp, Turbo and Elegant bottleless water coolers that...

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Price: $54.99

4 Cartridges for Crystal Quest RO Filtered Coolers Water Cooler Replacement Cartridge Set RO+SMART
SKU: CCRO4
Set of 4 SMART Inline Multistage Cartridges designed to be used with Crystal Quest line of Hybrid, Sharp, Turbo and Elegant bottleless water coolers with Reverse Osmosis (RO). This...

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Price: $232.99
On Sale For: $215.00
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4 Cartridges for Crystal Quest UF Filtered Coolers Water Cooler Replacement Cartridge Set UF+SMART
SKU: CCUF4
Set of 4 SMART Inline Multistage Cartridges designed to be used with Crystal Quest line of Hybrid, Sharp, Turbo and Elegant bottleless water coolers with Ultrafiltration(UF). This...

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Price: $221.99
On Sale For: $210.00
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Inline Ultrafiltration Membrane UF Inline Ultrafiltration Membrane
SKU: CQE-RC-04039
The 0.2 micron Inline Ultrafiltration (UF) Membrane Filter is designed for use with Bottleless Water Coolers and Reverse Osmosis systems and other filtration systems where an inline Ultrafiltration filter is required, such as where...

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Price: $69.00

Alkalizer remineralizer cartridge for Water Cooler Alkalizer remineralizer cartridge for FW RO Coolers
SKU: FW-RC-RM
Alkalizer remineralizer cartridge for FW RO Coolers. This is an Inline Natural Alkalizer Remineralizer, and Oxidation cartridge for FilterWater.com Bottleless Water Coolers with Reverse Osmosis systems. FW-RC-RM Alkalizer...

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Price: $199.00
On Sale For: $70.00

Inline Arsenic Removal Filter CQE-RC-04062 Inline Arsenic Removal Cartridge
SKU: CQE-RC-04062
Inline Arsenic Removal Filter Cartridge. Available as addition to Reverse Osmosis and Bottleless Water Cooler systems. Arsenic Removal Filter contains a special arsenic-selective resin that's effective on both arsenic III and V, and effectively...

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Price: $69.00

Natural alkalizer/ionizer, remineralizer cartridge Natural alkalizer/ionizer, mineralizer cartridge
SKU: CQ-RC-04054
Natural alkalizer/ionizer, mineralizer, and oxidation cartridge is effective and affordable. It turns water into a perfect Natural Alkali Calcium Ionized Water. Water passes through six stages where beneficial minerals and nutrients...

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Price: $69.00
On Sale For: $52.00

Inline Fluoride Removal Filter CQE-RC-04060 Inline Fluoride Removal Cartridge
SKU: CQE-RC-04060
Inline Fluoride Removal Cartridge. Available as addition to Reverse Osmosis and Bottleless Water Cooler systems. Fluoride Removal Filter contains a special fluoride-selective resin. Fluoride reduction is usually to below 0.5 ppm. Filter uses standard 1/4"...

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Price: $67.00

Inline Nitrate Removal Filter for RO and Coolers Inline Nitrate Removal Cartridge
SKU: CQE-RC-04061
Inline Nitrate Removal Cartridge. Available as addition to Reverse Osmosis and Bottleless Water Cooler systems. Nitrate Removal Filter contains a special nitrate-selective resin. Nitrate reduction is 90-95% and is not affected by sulfate...

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Price: $57.00

Aquaphor Morion Replacement Cartridge Set of 4 Aquaphor Morion Replacement Cartridge Set, 4 Filters
SKU: FW-DWM-RC
Aquaphor Morion Replacement Cartridge Set, a 4-filter replacement set for the Aquaphor DWM-101 Under Sink Reverse Osmosis System. Despite the technological complexity, DWM water filters are ergonomic and easy to use....

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Price: $189.00
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FW Cooler Replacement Cartridges Set of 3 Filters FW Cooler Replacement Cartridge Set
SKU: FW-RC-3
FW Cooler Replacement Cartridge Set, a set of 3 replacement cartridges for FilterWater FW Bottleless Water Coolers and FW-MINI under sink system. This replacement filter set is designed for bottleless coolers with...

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Price: $79.00

FW-500 Cooler Replacement Cartridges Set of 3 FW-500 Cooler 3-Filter Replacement Cartridge Set
SKU: FW500RC3
FW-500 Cooler Replacement Cartridge Set, a set of 3 replacement cartridges for FW-500 and 2500 series Water Coolers with 4 stage RO system. The replacement filter set is designed for bottleless coolers with Reverse...

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Price: $90.00
On Sale For: $70.00

FW-500 Cooler Replacement Cartridges Set of 4 FW-500 Cooler Replacement 4 Cartridge Set
SKU: FW500RC
FW-500 Cooler Replacement Cartridge Set, a set of 4 replacement cartridges for FW-500, 650 and FW-2500 Bottleless Water Coolers with 4 stage Ultrafiltration systems. The replacement filter set is designed for...

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Price: $129.00
On Sale For: $119.00
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Reverse Osmosis Membrane for FW-500 Water Cooler FW-500 Cooler Reverse Osmosis Membrane
SKU: FW500RO
FW-500 Cooler Reverse Osmosis Membrane is a RO Membrane for FW-500 and 2500 series Bottless Water Coolers with a 4 stage RO system. With a guaranteed delivery of 100 gallons per day(gpd), this membrane is suitable...

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Price: $50.00

Ultrafiltration Membrane for FW-500 Water Cooler FW-500 Cooler Ultrafiltration Membrane
SKU: FW500UF
FW-500 Cooler Ultrafiltration Membrane is a UF Membrane for FW-500 and 2500 series Bottleless Water Coolers. The UF membrane is used as one of the 4 cartridges in a 4-cartridge sub-micron purification systems...

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Price: $59.00

G4 G5 Cooler Replacement Cartridges Set of 3 G4 G5 Cooler Compatible Replacement Cartridge Set
SKU: GW-G4RC-3
G3 G4 G5 Cooler Compatible Replacement Cartridge Set is a 3 cartridge set regular carbon filtration unit for G3 / G4 / G5 / FW Bottleless Water Coolers and FW-MINI under sink system. It is a preset filter sequence...

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Price: $89.00

G4 G5 Cooler Replacement Cartridges G4 G5 FW Cooler Replacement Cartridges
SKU: GW-G4RC-SED
Cooler Replacement Cartridges for G4, G5, FW bottleless water coolers. Filter cartridges are designed for bottleless coolers with either Reverse Osmosis or regular filtration system. Compatible with FilterWater.com...

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Starting at: $30.00